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KMID : 1225720100020030195
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Allergy, Asthma & Immunology Research : AAIR
2010 Volume.2 No. 3 p.195 ~ p.198
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Angiotensin-Converting Enzyme Inhibitors and Angioedema
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Sanchez-Borges Mario
Gonzalez-Aveledo Luis A
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Abstract
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Purpose: To investigate the incidence and clinical characteristics of angioedema associated with the use of angiotensin-converting enzyme inhibitors (ACEIs) in an outpatient allergy department.
Methods: A retrospective review of medical records of new patients seen in an allergy clinic. Demographic and clinical data of patients with ACEI-induced angioedema were analyzed.
Results: Nine (0.37%) out of 2,421 new patients attending the allergy clinic developed ACEI-associated angioedema. Enalapril was the drug most frequently incriminated. The onset of the angioedema was as early as after the first dose or as late as 2 years after beginning treatment. Six patients experienced life-threatening angioedema involving the tongue, oropharynx, or larynx, and two patients required transfer to the intensive care unit. One patient required a tracheostomy.
Conclusions: Angiotensin-converting enzyme inhibitor treatment is often responsible for angioedema, especially involving the upper airways. Due to the high proportion of the population exposed to ACEIs and to the severity of this adverse effect, it is important that physicians consider ACEIs as possible inducers when evaluating patients with acute or recurrent angioedema.
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KEYWORD
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Angiotensin-converting enzyme inhibitors, angioedema, bradykinin, captopril, enalapril
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